body {
    background: url(../images/login_bg.jpg);
}

#logo {
    margin: 20px 0 0 240px;
}

.box {
    width: 400px;
    height: 280px;
    background-color: #fff;
    box-shadow: 5px 5px 5px 5px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

#login_title {
    margin-left: 50%;
    transform: translateX(-50%);
    margin-top: 20px;
}

.layui-form {
    margin: 0 25px;
}

.layui-form-item {
    position: relative;
    margin-top: 20px;
}

.layui-icon {
    position: absolute;
    left: 9px;
    top: 9px;
}

.layui-input {
    padding-left: 27px;
}